Rolling colter for brush breakers



May 15, 1928. 1,669,950

A. A. SCARLETT ROLLING COLTER FOR BRUSH BREAKERS Filed Jan. 30, 1926 2Sheets-Sheet 1 May 15, 1928.

' A. A. SCARLETT ROLLING COLTER FOR BRUSH BREAKERS Filed Jan. 30, 1926 2Sheets-Sheet 2 Imam/@025 Patented May 15, 1928.

s mmer o neuron, ILLINOIS, nssrqnon TO INTERNATIONAL- mmlemme comm reter-115K BREAKERS- --Application filed January 39, 11926. Serial No."84:,8 16.

This invention relates to rolling 'colters or plows. v

' More particularly, the invention pertains to in11)rove-1nent-s inrolling c-olter constructions for' plows us ed in breaking virgin landwhieh presents-a considerable variety I of unusual obsta'ies such as-roots, stones, stu nps etc. v This type of plow iseommonly "known as abrush-bi-eaker plow.

Amon other objects, the invention is intendec tosprovide a'pra'eticalrolling colter construction of adequate strength and stability to lmeetthe demands of the rough l usageito which plows are subjected inbreaking p reviously @ntilledland. M

The invention will clearly understood ereference to one illustrativeconstruction embodyingtthe invention, which is-sho min the annexeddrawings; i

Inlthedrawings: 1 I

Figwlwis an elevationeof atportion of a plow :having a rollingcoltermconstructed in accordance with theeteachings o'i fithis in-"ention; a

2. is mainly autransverse vertical eleration and partially a transversewerti-oal seoti on .of the improved -colter construction;

Fig 3 is a plan;

uF'g. llis an inclined sectional viewtaken you :the line Arid: of 1,looking int-the direction of ithe. arrows; I h

d :ig. 5 is anenlanged elevation of the cnlter showing the arrangementof elements at the, eenterrofthe cotter vdisk and ;1Fig. 6 isasectionalwfielw of. apart of the etructuresho\\1nginpill ig. o takenonthe line vii-1 6 of Fig. 5. i h In F 31gb?) :of the drawingsthediouiwpoint a support for the illustrative roller is indicated Bars orstruts 1, 2. 3 and 4, are .at-

tachedeat Ltheipoints A, B.C and J9 to -rthe parallel bars 10-13 theploiv frame to afford ,sueh a support. The disk journals-isadvantageously braced against strains in every direction by thesestraits whichextend in wardly of the suppm't pofints to the journal.This arrangement of elements is clearly represented in Fig. 3.

A pair of struts is located at each side of the plow. To afiordefiective journal sup ports and to promote desirable rigidity of thecolter constructiom these struts converge downwardly, as shown in Fig 1of the drawings. their-converged. ends, and

and 4;, indicated in'Fi-gs.-2 and Their anner and lower ends areformedas annular The are also overlapped at are oined by devices whichwill be hereinafter described.

ournal brackets 5 and Glare-rigidly secured to the inner surfaces of the'struts'Q journal supports having diametrically -opposed 'PSIILS ofsockets 7 anfld. S fOrmed- 'by pairs of spaced lugs v9 and '10, whichproect .irom e'aeh annulus in -a dlrection parallel to thea-Xis'about-Whih the colter disk rotates.

For effectivelyholding-the eolter disk to its course and to preventundesirable latoral swinging motion of the colter, the lower overlappedends o'f -the struts are connected by a structure Which-maintains themagainst inward as-Well as I outward re'lati-vemoveinents. This structureincludes "the tension rod or au hor bolt 11 and the compression sleeveJ2encasingthe rod; \Vhen'the burrs I13 onj thmends of the red aretightened, the opposite pairs of strutsare-securely gripped betweentheends of the sleeve 12 and the respective burrs l3 in a enanner whichis clearly indicated :in Fig A of #the drawin Sllhus, there is providedrigid substantially U-Lshaped colter supporting frame which anaintaimsthe Lrotating-colter parts: in freely rotatablecondition, the frameparts constituting a self-sustaining organization quite independent ofthe rotating elements. Mountedso .as .to rotate a round the sleeve 12 isa. s nnnietrieal compound hub structure foluithe disk 14. This hirbstructure comprises similar flanged hubs 15 having journal portionslfishaped as frusto-conical bearing parts. Spaced from these bearingparts annular sand bands 17 are cfornjied integral with each hub. Boltsmpulse-through theopposed flanges 190i .tthe herbs to secure them onopposite sides of the disk 14. as Clearly shown in Figs. 4, 5 and 6 ofthe drawings. 1 i vi Opposed journal caps '26, fraist'oronioal in shape,encase and rotatively support the hubs 1,5, theinternal surfaces ofthese caps forming bearing surfaces to cooperate With the exteriorbearing surfaces of the hubs. An appropriate clearance between the smallends of the journal caps and the sleeve 12 permits relative movements ofthese parts so that the opposite journal caps may be self-aligning uponthe insertion of the com pound hub structure therein.

Diametrically opposed radial lugs 21, having lubrication devices 22,project from the raised annular portions 23 of the journal caps and areso formed as to cooperate with the sockets T and S to afford a. twopointsupport for each cap. This character of support enhances theself-aligning feature of the journal caps and facilitates the assemblingof the entire colter structure. By making the lugs 21 of such dimensionsthat there are slight; clearances between their lateral faces and thecorresponding walls of the sockets 7 and 8, the colter journal may adaptitself to different positions of :nljustment.

Une end of the coltcr journal may be adjusted vertically andlongitudinally by r moving the burrs on bolts 29 which pass through theplow beam units and 20 its well as through the upper ends of the struts:3 and 4-. The projecting ends of these bolts may then be insertedthrough different ones of a series of holes provided in these struts andthe burrs replaced. \Vhen such an adjustment is made on only one of thestruts, the lead of the colter disk is changed.

Adjustment of the opposite end of the colter journal may be effected bysliding the U-shaped clamps 30 a long, the frame member 27 after theseclamps are loosened. Pivot bolts 31 extending centrally from these lampspermit the pivotal movement of the connected struts l and 2 as theclamps are moved alongthe frame.

Adjustment of any one of the struts may be such as to change theposition of the lower edge of the coltcr disk laterally with respect tothe plow point 33 of the plow bottom 32. Thus the cotter disk can bemade to properly cooperate with the plow under various soil conditionsand under all conditions of wear or distortion resulting from longcontinued rough usage of the plow.

A suitable protective device, such as the arcuate guard 34- cxtends upover the upper edge of the cotter disk. This guard is so cured at itsends to the. plow frame, as clearly indicated in Fig. 1 of the drawings.

The illustrative colter construction adequately meets the demands of therigorous service for which. it is intended, eliminating excessivevibration of the coltcr disk, effectively clearing a path for the plowpoint through ditierent obstacles, and operating with a minimum increaseof the draft required, considering the service performed.

The journal construction shown is constructed so as to facilitate properlubrication of the bearing surfaces; it enables end thrusts and radialthrusts to be taken only by the lubricated parts; reduces wear upon theends of the journal parts; adequately excludes dust and sand from thebearing surfaces; is mounted on a frame made rigid without theapplication of directlateral pressure upon journal parts; and is soformed of duplicate parts that the advantage ol standardization of partsobtains in its manufacture.

Obviously the present. invention is not limited to the specific detailsof construction. arrangement; and mode of operation shown in thedrawings; since the same may be variously modified to suit differentconditions or requirements.

I claim l. A rolling coltcr construction for plows comprising a plowbeam structure. a. rotatng coltcl' disk mounted beneath the frame on anaxis transvtu'se to said beam structure, a journal for said disk, asupport for one end of the journal, two separate struts secured at theirupper ends to one side of the beam structure and supporting the otherend ot the journal, means for adjusting each strut endwise relative toits point of securement. to the beam structure so as to vary the lengthof the strut extending between its point of securement and the journal,and additional adjusting means for sec-urine the upper ends of thestruts at, ditlerent positions longitudinally of the beam structure.

A rolling eolter construction for plows comprising a plow beamconstruction. a colter disk rotatably supported thereby. a journalbearing: construction for the disk. :1 support secured to one side ofthe plow beam construction and to one end of the bearing constauction.two struts supportiur the other end of the journal construction, meansfor securing the lower ends of struts to the bearinji constrtu-t'ion, aplow body having a plow point. a slidable fixture secured to the beamcmistruetion at the upper end of each st rut wberbey the spacing of thecotter disk relative to the plow point may be changed by movement ofsaid fixtures toward or from each other along the beam construction. andmeans for pivotally and adjustably seem-in; the upper end of each strutto a lixture whereby the lead of the cotter disk may be varied.

In testimony whereof I aliix my signature.

ARTHUR A. SCARLET T,

